Features: Brass casting structure Brass, wear-resistant and reliable, accurate anti-corrosion. The pressure regulating for valve (constant flow for valve) functions like a water flow switch. This solenoid for valve not only keeps constant current flowing steadily, but also prevents dry burning and monitors flow. Easy to install and maintain. No power consumption, with direct and stable water regulation. High quality normally closed electric solenoid for valve for air ,water or oil. Suitable for many fields: irrigation control (gardens, farms, etc.), liquid control (pipes, artificial rivers, etc.) and air control (laboratory, factory, etc.) Specifications: Material: Brass Thread Size: 1/2" Size: Approx. 6x6.4cm/2.36x2.52inch Working Altitude: ≤2500m/8202ft Working Temperature: 0-40℃ Working Humidity: <95% (at 25℃) Type: Guided (one-way) Solenoid for Valve Rated Voltage: Ac 220v Mode of Operation: Short-term Quota System Insulation Class: E Liquid: Water Temperature: 0℃-55℃ Water Pressure: 0.02-0.8mpa Water Pressure (mpa): 0.02, 0.1, 0.3, 0.8 Flow (l/min): > 5 > 11 > 18 > 32 Life: > 100,000 Times Package Includes: 1x Electric Solenoid for Valve note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.